I just love that UFC offers their undercard fights for free. 8 fights on UFC Facebook starting at 4:55pm ET/1:55pm PT.

1. Go to www.facebook.com/ufc
2. Click "like" if you haven't already.
3. Click "live video" on the left.
4. Click the image in the middle to load the video stream (looks like the image below).
5. If it gives you an error, click on of the other videos on the video ribbon at the top of the streaming window, wait for it to load, then click back on the video and it will work.